301 Redirects After Web Service Closure are Good for SEO

How to handle 301 redirects after shutting down a web service, and why 3-6 months is enough from an SEO perspective.

Attention Required - Earnings at risk - You need to fix some ads.txt file issues [WordPress Edition]

Fixing the AdSense ads.txt warning on WordPress + Nginx by placing the file and adding an Nginx location block.

Three benefits of implementing Always SSL (HTTPS) ~ Security, SEO, and reducing user distrust

Why sites should go HTTPS everywhere, summarized as three benefits: security, SEO, and reducing user distrust.

How to Find Amazon Pay Prohibited Business Categories and Products

How to use Google's `intext:` and `site:` operators to surface products that fall under Amazon Pay's prohibited categories.

Reading Notes: 『いちばんやさしい新しいSEOの教本 第2版 人気講師が教える検索に強いサイトの作り方［MFI対応］』(The Easiest New SEO Textbook 2nd Edition: How to Build Search-Strong Sites as Taught by Popular Instructors [MFI Compatible]) by Hiroshi Yasukawa

Reading notes revisiting an SEO beginner-friendly textbook by Hiroshi Yasukawa.

Price Comparison of CAPTCHA Breaking Services Compatible with Search Ranking Checker Tool Serposcope

A price comparison of four CAPTCHA breaking services that work with Serposcope, with a monthly cost estimate.

/careers seems to be the mainstream URL for recruitment pages

Looking at overseas web companies, /careers seems to be the mainstream URL for recruitment pages.

When using CDN, CNAME management with subdomain is better for SEO

For SEO, point a custom-domain subdomain at your CDN with a CNAME instead of using the raw CDN URL.

CDN Implementation Proposal

A CDN proposal covering the basics, trade-offs, and choosing between CloudFront and Fastly.

How to Generate OGP Images Dynamically with Cloudinary

Generate OGP images dynamically by overlaying text on a base image via Cloudinary URL parameters.

Made CodeNote.net Multilingual

During the three-day weekend, I implemented multilingual support for CodeNote.net that I had wanted to work on for a while. This is the first phase where I added English support, and I've summarized the specific steps from URL design to hreflang configuration, which is important for SEO.

[CSS] For image replacement, hide text with text-indent: 100%; white-space: nowrap; overflow: hidden;

A modern image-replacement pattern that hides text safely with text-indent: 100%.

Don't Use CSS Text Truncation with Ellipses (...) for SEO

Introducing why we avoid CSS text truncation with ellipses, as it may lead to SEO penalties.

E-commerce sites can expect SEO benefits by displaying reviews on product pages

Notes on why showing many product reviews helps SEO, with a look at how Amazon.co.jp lays out customer reviews.

Google Search Guidance for AI-Generated Content and Author Markup Policy

A policy for handling the author markup on AI-generated articles, based on Google's guidance.

Can Google Search Console switch search results by co.jp or .com? #SEO

A short Q&A on whether Google Search Console can switch results between co.jp and .com.

[Google] How to Display Author Information in Search Results

A memo linking to a detailed guide on showing author info in Google search results.

How to Redirect to Different Domains/URLs with Google Tag Manager + location.href

Injecting a JavaScript tag via GTM to redirect to another domain using location.href.

How to create a Google+ page

Reference articles I used when creating a Google+ page, plus notes on its impact on search results.

Steps to Install Search Ranking Checker Tool Serposcope on Ubuntu

Install the Serposcope 2.6.0 deb package on Ubuntu and start the service to expose the rank checker.

[iOS] Campaign Tracking with Google Analytics

How Google Analytics campaign tracking works on iOS, and why I decided against adopting it.

How to Install Google Analytics on Livedoor Blog

Install Google Analytics on Livedoor Blog by pasting the tracking snippet into Custom JS – In head.

[SEO] Improving mobile-friendliness apparently affects increasing domain authority

Mobile-friendliness feeds domain authority — sharing my Mobile-Friendly Test results for this site.

Netlify becomes faster depending on root domain and subdomain assignment

Which combination of Netlify DNS or subdomain assignment lets Geo-targeting kick in and make sites faster.

[Nginx] How to Configure Redirects from www URLs to Non-www URLs

How to set up a 301 redirect from www URLs to non-www URLs in Nginx using rewrite.

Achieved Perfect 100 Scores on All PageSpeed Insights Metrics

A record of achieving perfect 100 scores on PageSpeed Insights by fixing the accessibility rule Links must have discernible text.

PocketSEO app for checking domain authority and page authority is convenient

PocketSEO is an unofficial Moz mobile app for checking DA, PA, and backlinks on the go.

[Ruby on Rails] How to change title for each page

Per-page title and meta tags in Rails using content_for and yield, with ERB and Haml examples.

Should Allow Come Before Disallow in robots.txt? RFC and Compatibility Best Practices

The claim that 'Allow must be written first in robots.txt or it won't work.' While this is technically incorrect according to the latest RFC, it's a best practice that can't be ignored for compatibility reasons. This article explains why, based on RFC 9309 and older crawler behavior.

Recommended SEO Beginner Books and Reading Order ~ 'Silent Web Marketing/Writing' -> 'The Kindest New SEO Textbook'

A recommended reading order for SEO beginner books, built around the 'Silent Web' series and 'The Kindest New SEO Textbook'.

[SEO] Should I use half-width spaces or  ?

A short Q&A memo on whether to use half-width spaces or   from an SEO perspective.

[SEO] Pagination Support

Reference notes on SEO for paginated pages, centered on rel="prev" and rel="next".

CAPTCHA Frequency with Search Ranking Checker Tool Serposcope

A case study of tuning Serposcope to keep CAPTCHA occurrences under 10 across about 6000 keywords.

Points to check when configuration file specified in Serposcope's Dserposcope.conf is not loaded

Serposcope ignored `-Dserposcope.conf` because I had the `java` command options in the wrong order.

I Tried Using Free Proxies with Search Ranking Checker Tool Serposcope but It Didn't Work

I hooked Serposcope up to free proxies, but CAPTCHAs made it completely unusable.

social-share-urls: Easy Generation of SNS Share URLs

Using the open-source social-share-urls tool to bulk-generate share URLs for multiple social networks.

URL Normalization for Astro Sites: Why and How to Always Enable Trailing Slash

Should you add a slash / at the end of website URLs or not? This is one of the important themes when considering SEO. For CodeNote.net, I reviewed the Astro configuration and decided to always enable trailing slash. I'll share the reasons and specific configuration methods.

Twitter Cards cannot be used without application

A short note that Twitter Cards, unlike Facebook OGP, require an approval application before they render.

Updated robots.txt Based on Content Signals to Open All Content for AI Training

I want to provide my content as context for AI, and I find it advantageous for AI training purposes. For these reasons, I have made all content on this site, codenote.net, available for search engines, AI input, and AI training. This article introduces the robots.txt updates based on Content Signals policy and the background behind this decision.

Policy to Define URL String Maximum Length Validation at 2,000 Characters

Why I set URL string validation to a maximum of 2,000 characters based on RFC and vendor guidance.

Considering the Impact and Response Strategy for URL Refactoring

Impact areas and response strategies to consider when refactoring URLs, including 301 redirects.

[SEO] Website Performance Measurement Service "WebPageTest"

A quick introduction to the WebPageTest website performance measurement service.

Website Speed Optimization

A short memo of reference articles on website speed optimization — CSS Sprites and prerendering.

[WordPress] How to configure All in One SEO Pack to display Facebook og:image nicely

Setting All in One SEO Pack's OG:Image Source to First Attached Image so Facebook picks up the right og:image.

[WordPress] Migrated from All in One SEO Pack to Yoast SEO

Migrating a WordPress SEO plugin from All in One SEO Pack to Yoast SEO after Twitter Card errors appeared.

[WordPress] How to Support Accelerated Mobile Pages Using the AMP Plugin

Adding AMP support to WordPress and fixing disallowed tags flagged by AMP Test.

[WordPress] How to resolve Facebook Sharing Debugger 'The following properties are required: fb:app_id' error

Fixing Facebook Sharing Debugger's fb:app_id error with Yoast SEO.

Removed WordPress Plugin 'ShareThis Dashboard for Google Analytics' and Installed 'Site Kit by Google'

Replacing a broken ShareThis Dashboard for Google Analytics install with Google's official Site Kit plugin.

[WordPress] How to Implement Twitter Cards Using the Official Twitter Plugin

Adding Twitter Cards to WordPress in three steps using the official Twitter plugin.

[WordPress] Sample using category name in backlink (external link) text

A sample of injecting the current category name from get_the_category() into the anchor text of an outbound link.

[WordPress] Changing 'WP-OGP' Thumbnail Image og:image

How I replaced the WP-OGP default thumbnail by changing the image filename and updating wp-ogp.php.

How to fix the problem of double-displayed titles in Yoast SEO

Fixing doubled titles after installing Yoast SEO by enabling Force rewrite titles on the Search Appearance page.